A 125 MVA 11-kV three phase 50-Hz synchronous generator has a  synchronous reactance of 1.33 pu. The generator achieves rated open  circuit voltage at a field a current of 325 A. the generator is  operating on a system with equivalent L-L voltage of 11kV and a  equivalent impedance of 0.17 pu on the generator base. The generator is  loaded with a real power of 110 MW.  a. Calculate the generated voltage  E_gf in per unit and kV(L-L) when the system is operating at unity power factor. Calculate the corresponding field current, the corresponding  generator terminal voltage, in per unit and kV(L-L), and the generator  power factor.  b. Calculate the generated voltage E_gf in per unit and  kV(L-L) such that the generator is operating at the rated terminal  voltage. Calculate the corresponding field current, the corresponding  generator terminal voltage in per unit and kV(L-L), and the generator  power factor.

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a The rated values are 11 kV 125 MVA The rated curre... View the full answer